summaryrefslogtreecommitdiff
path: root/src/console/consoled-workspace.c
diff options
context:
space:
mode:
authorDavid Herrmann <dh.herrmann@gmail.com>2014-10-03 15:58:44 +0200
committerDavid Herrmann <dh.herrmann@gmail.com>2014-10-03 16:07:14 +0200
commitce7b9f50c3fadbad22feeb28e4429ad9bee02bcc (patch)
treeb5f12ae9987b4f0ad0170fe9d2675f9c78d97c0b /src/console/consoled-workspace.c
parent48fed5c55b5183e6d44702dfdccd3b5325d8689c (diff)
console: add user console daemon
This adds a first draft of systemd-consoled. This is still missing a lot of features and does some rather primitive rendering. However, it shows the direction this code is going and serves as basis for further testing. The systemd-consoled binary should be run as `systemd --user' unit. It automatically picks up any session marked as Desktop=SYSTEMD-CONSOLE. Therefore, you can use any login-manager you want (ranging from /bin/login to gdm) to create sessions for systemd-consoled. However, the sessions managers must be prepared to set the Desktop= variable properly. The user-session is called `systemd-console', only the daemon providing the terminal environment is called `systemd-consoled' (mind the 'd'). So far, only a single terminal session is provided on each opened user-session. However, we support multiple user-sessions (even across multiple seats) just fine. In the future, the workspace logic will get extended so you can have multiple terminal sessions in a single user-session for easier access. Note that this is still experimental! Instructions on how to run it will follow shortly.
Diffstat (limited to 'src/console/consoled-workspace.c')
-rw-r--r--src/console/consoled-workspace.c168
1 files changed, 168 insertions, 0 deletions
diff --git a/src/console/consoled-workspace.c b/src/console/consoled-workspace.c
new file mode 100644
index 0000000000..56344ef2cf
--- /dev/null
+++ b/src/console/consoled-workspace.c
@@ -0,0 +1,168 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2014 David Herrmann <dh.herrmann@gmail.com>
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <inttypes.h>
+#include <stdlib.h>
+#include "consoled.h"
+#include "grdev.h"
+#include "idev.h"
+#include "list.h"
+#include "macro.h"
+#include "util.h"
+
+int workspace_new(Workspace **out, Manager *m) {
+ _cleanup_(workspace_unrefp) Workspace *w = NULL;
+ int r;
+
+ assert(out);
+
+ w = new0(Workspace, 1);
+ if (!w)
+ return -ENOMEM;
+
+ w->ref = 1;
+ w->manager = m;
+ LIST_PREPEND(workspaces_by_manager, m->workspace_list, w);
+
+ r = terminal_new(&w->current, w);
+ if (r < 0)
+ return r;
+
+ *out = w;
+ w = NULL;
+ return 0;
+}
+
+static void workspace_cleanup(Workspace *w) {
+ Terminal *t;
+
+ assert(w);
+ assert(w->ref == 0);
+ assert(w->manager);
+ assert(!w->session_list);
+
+ w->current = NULL;
+ while ((t = w->terminal_list))
+ terminal_free(t);
+
+ LIST_REMOVE(workspaces_by_manager, w->manager->workspace_list, w);
+ free(w);
+}
+
+Workspace *workspace_ref(Workspace *w) {
+ assert(w);
+
+ ++w->ref;
+ return w;
+}
+
+Workspace *workspace_unref(Workspace *w) {
+ if (!w)
+ return NULL;
+
+ assert(w->ref > 0);
+
+ if (--w->ref == 0)
+ workspace_cleanup(w);
+
+ return NULL;
+}
+
+Workspace *workspace_attach(Workspace *w, Session *s) {
+ assert(w);
+ assert(s);
+
+ LIST_PREPEND(sessions_by_workspace, w->session_list, s);
+ workspace_refresh(w);
+ return workspace_ref(w);
+}
+
+Workspace *workspace_detach(Workspace *w, Session *s) {
+ assert(w);
+ assert(s);
+ assert(s->active_ws == w);
+
+ LIST_REMOVE(sessions_by_workspace, w->session_list, s);
+ workspace_refresh(w);
+ return workspace_unref(w);
+}
+
+void workspace_refresh(Workspace *w) {
+ uint32_t width, height;
+ Terminal *t;
+ Session *s;
+ Display *d;
+
+ assert(w);
+
+ width = 0;
+ height = 0;
+
+ /* find out minimum dimension of all attached displays */
+ LIST_FOREACH(sessions_by_workspace, s, w->session_list) {
+ LIST_FOREACH(displays_by_session, d, s->display_list) {
+ assert(d->width > 0 && d->height > 0);
+
+ if (width == 0 || d->width < width)
+ width = d->width;
+ if (height == 0 || d->height < height)
+ height = d->height;
+ }
+ }
+
+ /* either both are zero, or none is zero */
+ assert(!(!width ^ !height));
+
+ /* update terminal-sizes if dimensions changed */
+ if (w->width != width || w->height != height) {
+ w->width = width;
+ w->height = height;
+
+ LIST_FOREACH(terminals_by_workspace, t, w->terminal_list)
+ terminal_resize(t);
+
+ workspace_dirty(w);
+ }
+}
+
+void workspace_dirty(Workspace *w) {
+ Session *s;
+
+ assert(w);
+
+ LIST_FOREACH(sessions_by_workspace, s, w->session_list)
+ session_dirty(s);
+}
+
+void workspace_feed(Workspace *w, idev_data *data) {
+ assert(w);
+ assert(data);
+
+ terminal_feed(w->current, data);
+}
+
+bool workspace_draw(Workspace *w, const grdev_display_target *target) {
+ assert(w);
+ assert(target);
+
+ return terminal_draw(w->current, target);
+}